From 7415a11c63600f22ade2f97927a98eec939f4d17 Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Thu, 27 Sep 2012 18:07:02 +0200
Subject: [PATCH] More responsive zoom buttons on touch devices thanks to
 @ahocevar

---
 src/ol/control/zoom.js | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/ol/control/zoom.js b/src/ol/control/zoom.js
index 5e9126093d..754bae35f8 100644
--- a/src/ol/control/zoom.js
+++ b/src/ol/control/zoom.js
@@ -5,6 +5,7 @@ goog.require('goog.dom');
 goog.require('goog.dom.TagName');
 goog.require('goog.events');
 goog.require('goog.events.EventType');
+goog.require('ol.BrowserFeature');
 goog.require('ol.Projection');
 goog.require('ol.control.Control');
 
@@ -25,22 +26,26 @@ ol.control.ZoomOptions;
  */
 ol.control.Zoom = function(zoomOptions) {
 
+  var eventType = ol.BrowserFeature.HAS_TOUCH ?
+      goog.events.EventType.TOUCHEND : goog.events.EventType.CLICK;
+
   var inElement = goog.dom.createDom(goog.dom.TagName.A, {
     'href': '#zoomIn',
     'class': 'ol-zoom-in'
   }, '+');
-  goog.events.listen(
-      inElement, goog.events.EventType.CLICK, this.handleIn_, false, this);
+  goog.events.listen(inElement, eventType, this.handleIn_, false, this);
 
   var outElement = goog.dom.createDom(goog.dom.TagName.A, {
     'href': '#zoomOut',
     'class': 'ol-zoom-out'
   }, '\u2212');
-  goog.events.listen(
-      outElement, goog.events.EventType.CLICK, this.handleOut_, false, this);
+  goog.events.listen(outElement, eventType, this.handleOut_, false, this);
 
   var element = goog.dom.createDom(
       goog.dom.TagName.DIV, 'ol-zoom', inElement, outElement);
+  goog.events.listen(
+      element, ol.BrowserFeature.HAS_TOUCH ? goog.events.EventType.TOUCHSTART :
+      goog.events.EventType.MOUSEDOWN, goog.events.Event.stopPropagation);
 
   goog.base(this, {
     element: element,